fixing deprecation warning
tests compile with multiple jvms
adding modifications to build.xml which triggers unit tests, adding sample test
adding gridworld test
adding bfs, dfs, astar tests
Merge pull request #19 from jmacglashan/jmacglashan

Jmacglashan
Merge branch 'jmacglashan'
Merge pull request #18 from jmacglashan/fix_deprecation

fixing deprecation warning
adding a block dude test
Merge pull request #21 from jmacglashan/testing

Testing
Various javadoc fixes